UbiBot probes and accessories - what fits which device

For each probe and accessory we list the UbiBot devices it fits. Before you choose, check three things:

Plug. The WS1 and WS1 Pro have micro-USB ports; the GS2, SP1, NR1 and the GS1 and WS4 versions with a probe port have a mini-jack (3.5 mm audio) port. The GS1-A, GS1-A4G, WS4-A and WS4-A4G have no probe port. Many probes come with either plug.
Power. Probes marked "with 12 V adapter" work with the GS1 only when it runs on its 12 V adapter, not on USB 5 V.
Number of probes. The GS1 takes up to six probes, depending on the models. When several probes of the same model work together, we change their addresses before shipping, so tell us with your order which probes will work together. The CO₂ probe is the exception: its address cannot be changed. A 1-to-2 or 1-to-6 splitter connects several probes to one mini-jack port.

Fits: WS1, WS1 Pro, SP1, GS2, GS1 (through the UB-TRS-N1 converter)

DS18B20 temperature probe

Waterproof stainless steel probe for fridges, freezers, cold rooms and greenhouses.

-55 to +125 °C, accuracy ±0.5 °C from -10 to +85 °C
IP68, metal tip 31 mm, diameter 6 mm
micro-USB plug for WS1 and WS1 Pro: flat cable 1 or 3 m, round cable 3, 5, 10 or 15 m
mini-jack plug for SP1 and GS2: flat cable 3 m, round cable 3 or 5 m
the flat cable passes under a fridge door seal
with WS1 and WS1 Pro, up to 25 m in total with extensions
current GS1 units take it through the UB-TRS-N1 converter; older units with "1DS" in the code take it directly

Fits: WS1, WS1 Pro

Micro-USB 1-to-2 splitter

Combines mains power and an external probe on one micro-USB port.

WS1: DS18B20 probe and the power adapter on one port
WS1 Pro: one probe and power; the second probe goes straight into the logger
1 micro-USB plug to 2 micro-USB sockets
18.5 cm, 11.7 g

Micro-USB splitter for UbiBot data loggers

Fits: WS1 Pro (EXT2 port), GS1, WS4 (A4G1RS and P4G1RS), SP1

TH30S-B and TH35S-B temperature and humidity probe

Measures air temperature and humidity away from the logger, for example in a cold room, incubator or cabinet.

TH30S-B: -40 to +80 °C, ±0.2 °C; 0-100 % RH, ±2 % RH
TH35S-B, the more accurate version: ±0.1 °C (20-60 °C), ±1.5 % RH (0-80 %)
micro-USB plug with 5 m cable or mini-jack with 3 m cable
on the GS1 it does not work together with the CO₂ probe
does not fit the standard WS1; use the DS18B20 probe there

Fits: WS1 Pro (EXT2 port), GS1, WS4 (1RS versions), SP1

STH-N1 soil moisture and temperature probe

Measures soil moisture and temperature in the root zone, to help decide when to water.

moisture 0-100 %, ±3 % (0-50 %), ±5 % (50-100 %)
temperature -40 to +85 °C, ±0.5 °C
IP68
3 m cable, micro-USB or mini-jack plug

UbiBot soil temperature and moisture probe

Fits: WS1 Pro (EXT2 port), GS1, WS4 (1RS versions), SP1

PT100 temperature probe

For very low and high temperatures: ovens, dryers, tanks and industrial processes.

-200 to +400 °C, accuracy ±(2 % + 1 °C)
the cable withstands -30 to +200 °C
probe 200 mm, diameter 5 mm, IP68
3 m cable to the transmitter, then 0.5 m with micro-USB or mini-jack plug
does not fit the standard WS1

Fits: WS1 Pro (micro-USB), GS1 (without "1DS" in the code), SP1, NR1

UB-WS-N1 cup anemometer

Measures wind speed and alerts when it is too strong, for example at a greenhouse, scaffolding or crane.

0-30 m/s, accuracy ±(0.3 + 0.03 v) m/s
power 5-24 V from the device, no 12 V adapter needed
-30 to +70 °C
3 m cable, micro-USB or mini-jack plug
IP65, about 25 × 25 × 25 cm, about 0.4 kg

Fits: GS1-AETH1RS (GS1 with Ethernet)

UB-PS-A1 PoE splitter with 12 V output

Powers the GS1-AETH1RS from the network cable, so no socket is needed at the mounting point.

input PoE IEEE 802.3af, 37-57 V DC, 15.4 W
outputs 12 V DC / 1 A and Ethernet 10/100 Mbit/s
the switch or router must supply 802.3af PoE

Fits: GS1, GS2

UB-SP-A1 10 W solar panel

Powers the logger in the field without a socket: in a field, an orchard or at a water tank.

10 W, output 5 V / 2 A
340 × 240 × 17 mm
5 m cable with DC5521 plug straight into the logger
IP67, -20 to +60 °C
it powers the logger only; 12 V probes such as the rain gauge or gas sensors cannot run from the panel

Power supply panel for UbiBot GS1 data loggers

Fits: GS1, WS4 (1RS versions), SP1

UB-CO2-P1 CO₂ probe

NDIR carbon dioxide measurement in a greenhouse, mushroom farm, fruit store or office.

0-40,000 ppm, accuracy ±(30 ppm + 3 %) in 400-10,000 ppm
the cheaper UB-CO2-P3: 400-2,000 ppm, to order
3 m cable with mini-jack plug
on the GS1 it does not work together with the TH30S-B probe

Fits: GS1 (with 12 V adapter), GS2

110 dB alarm siren

A loud light and sound alarm next to the logger, heard in a hall or outdoors.

110 dB, 10 W
powered from the logger running on its 12 V adapter
diameter 94 mm, height 178 mm, 0.48 kg
a rule set on another UbiBot device can trigger it
availability on request

Fits: WS1 Pro (micro-USB); GS1 and SP1 in the Audio version, to order

UB-MA-N1 light and sound alarm

An on-site alarm: a siren and light next to the logger when a reading crosses a threshold.

90 dB, LED light
5 V from the logger, under 1 W
RS485 (Modbus RTU)
130 × 68 × 70 mm
does not fit the standard WS1

More probes and accessories

Item	Fits	Key data
UB-TRS-N1 converter: DS18B20 to GS1	GS1 (without "1DS"), NR1	DS18B20 in, RS485 out; 5-12 V; 320 mm
UB-CS-A2 mini-jack 1-to-2 splitter	GS1 and WS4 with probe port, SP1, NR1	36 cm; works with the 5 m extension
SPC-A-1-6 mini-jack 1-to-6 splitter	GS1 with probe port, SP1, WS4 (A4G1RS, P4G1RS)	up to six probes, about 30 cm
UB-EC-A1 5 m mini-jack extension	GS1 and WS4 with probe port, GS2, SP1, NR1	can be chained
5 m micro-USB extension	WS1, WS1 Pro	can be chained, up to 25 m with the probe cable
PA-GS1 12 V adapter	GS1 (with probe port), GS2	12 V DC, 1 A, EU plug; required for 12 V probes
USB 5 V adapter	WS1, WS1 Pro, GS1, AQS1	USB-A, 5 V, up to 2.1 A
UbiBot Global SIM	SIM versions of WS1 Pro, GS1, WS4, GS2, AQS1, SP1, NR1	roaming in over 100 countries; data packages in platform credits
Magnetic holder	GS1 and GS2 (2 per logger), WS1 Pro (1)	holds on ferromagnetic steel only
SPH-N1 soil pH	GS1 (built after 18.07.2022, without "1DS"), SP1, WS4 (1RS)	3-9 pH, ±0.3 pH, IP68
SEC-N1 soil moisture, temperature and EC	GS1	EC 0-20,000 µS/cm, IP68
NPK soil sensor	GS1	N, P, K 0-1999 mg/kg; on request
Leaf temperature and wetness sensor	GS1	IP67; on request
UB-AI-N1 4-20 mA converter	GS1 (with 12 V adapter)	4 inputs; channel ranges set before shipping
UB-WD-N1 wind direction	GS1 (with 12 V adapter), NR1	0-359.9°, ±1°; to order
UB-NH3-I1 ammonia	GS1 (with 12 V adapter)	0-500 ppm
UB-H2S-I1 hydrogen sulphide	GS1 (with 12 V adapter)	0-100 ppm, IP65
UB-O2-N1 oxygen	GS1 (with 12 V adapter), NR1	0-30 % vol., IP65
UB-ATHP-N1 pressure, temperature, humidity	GS1 (built after 18.07.2022), WS4 (A4G1RS, P4G1RS)	26-126 kPa, ±50 Pa
UB-DWT-N1 wet and dry bulb	GS1 (built after 18.07.2022), NR1	dew point ±0.3 °C
UB-SS-N1 smoke detector with siren	GS1 (with 12 V adapter)	85 dB siren; no EN 14604 certificate
UB-SR-N1 pyranometer	GS1 (with 12 V adapter)	0-1800 W/m²
UB-RA-N1 rain gauge	GS1 (with 12 V adapter)	0.2 mm resolution
Spot water leak sensor	GS1 (with 12 V adapter)	IP65; not for demineralised water or glycol
UB-VS-N1 vibration sensor	GS1 (built after 18.07.2022), NR1	3 × AA, IP65

How to buy probes and accessories

We are Omnic, the authorised UbiBot distributor in Poland, and we sell to companies and private customers in all EU countries. Tell us which UbiBot device you have or plan to buy, what you want to measure and where to deliver, and we will choose the probes and send a quote in EUR. When several probes of the same model work together, we set their addresses before shipping. EU companies with a valid VAT number are invoiced without Polish VAT; delivery takes 4-5 business days.

Get a quote or write to [email protected].