- temperature measurement range: -20°C to +85°C
- temperature measurement accuracy:
- SL54TH version:
- +10°C to +70°C +/- 0.5°C
- SL53T-A improved accuracy version:
- +/- 0.1°C +/- 0.1% of calibrated span
- default calibration points: 0°C, +20°C and +40°C.
- other calibration point available on request
- SL54TH version:
- humidity measurement range: 0% to 100% RH (0% to 90% continuous, 90% to 100% for short periods)
- humidity measurement accuracy:
- SL54TH version:
- +/- 5% RH
- SL54TH-A improved accuracy version:
- 10% RH TO 90% RH +/- 2% RH
- outside of this range +/- 5%
- default relative humidity calibration points 20%, 43% and 75%
- other calibration points available on request
- SL54TH version:
- resolution:
- 0.5°C in low resolution mode
- 0.07°C in high resolution mode
- 0.04% RH
- battery lifetime:
- approx. 1 year at 80°C
- approx. 2 years at 30°C (10 min sampling)
- see battery life calculator
- storage/memory size:
- 4.096 temperature and 4.096 humidity samples in low resolution mode
- 2.048 temperature and 2.048 humidity samples in high resolution mode
- reusable when memory full: yes
- sample rates:
- 2 seconds to 24 hours
- 2 seconds to 1 minute in 5 second steps
- 1 minute to 1 hour in 1 minute steps
- 1 hour to 24 hours in 1 hour steps
- recording modes: ring buffer or stop when full
- response time:
- 63% step change:
- temperature: 90 seconds
- humidity: 225 seconds
- 10% to 90% step change:
- temperatuure: 170 seconds
- humidity: 594 seconds
- 63% step change:
- start logging delay: you can specify time & date to start logging 1 year in advance with 1 minute resolution
- start on alarm: yes
- software alarms: high and low alarms can be specified in the software
- pc connection: with separate USB interface cable
- dimensions: 17.35 x 5.89mm
- weight: 5g
- housing material: 305 stainless steel
- protection class: due to the vent required to allow humidity measurement, this device is not considered waterproof and care should be taken to avoid moisture ingress
- environmental considerations: like all relative humidity sensors, when exposed to contaminants and/or conditions toward the limits of the safe operating range, accuracy degradation can result. For maximum long-term stability, the sensor should not be exposed or subjected to organic solvents, corrosive agents (e.g., strong acids, SO2, H2SO4, CI2, HCL,H2S) and strong bases (i.e., compounds with a pH greater than 7). Dust settling on the filter surface does not affect the sensor performance except to possibly decrease the speed of response.
- conformity: –
- Ex-certification: Meets UL#913 (4th Edit.); Intrinsically Safe Apparatus, approval under Entity Concept for use in Class I, Division 1, Group A, B, C, and D Locations
- calibration: annual re-calibration reminder function setting
- optional:
- SL54TH-A further improved accuracy version with ISO UKAS 17025 traceable calibration certificate
– SL50 series brochure
– SL50 series instruction sheet
– TempIT graphical analysis datalogger software
Interested? click here to contact Us.





Datalogger interface cable

SL50 interface-usb
USB communication interface for connecting all SL50 series dataloggers to a computer
Holders and fixtures

SL50-ACC10
Constructed from blue anodised aluminium, the SL50-ACC10 is a fast response enclosure for use with all SL50 dataloggers
- material:
- hard anodised aluminium casing
- 316 stainless steel screw
- protection: up to 3.5 Bar or 35m submersion
- response time in water:
- 28 s (61% step change)
- 60 s (10% to 90% step change)
- response time in air:
- 117 s (61% step change)
- 238 s (10% to 90% step change)
- o-ring: FDA food grade EPDM

SL50-ACC02
A strong self-adhesive magnet suitable for use with all SL50 series button dataloggers for quick and easy fixing.

SL50-wall mounting holder (pack of 5)
Pack of five wall mount holders for all SL50 series data loggers. Ideal for fixing to walls, racking or pallets.

SL50-CLIP (pack of 5)
The SL50-CLIP is a small black plastic key fob that will accept any of the SL50 series dataloggers. Can be held in place with a single screw or tie wrap.

SL50 self-adhesive magnet
Suitable for use with all SL50 series button dataloggers for quick and easy fixing
Waterproofing enclosures

SL50-ACC01
Stainless steel enclosure that protects the dataloggers in harsh environments or where there is likely to be pressures in excess of 100mBar
- material: 316 stainless steel
- protection: up to 10 Bar or 100m submersion
- response time in water:
- 73 s (61% step change)
- 142 s (10% to 90% step change)
- response time in air:
- 373 s (61% step change)
- 238 s (10% to 90% step change)
- o-ring: silicone (VMQ) FDA 70 ShA

SL50-ACC03
Lightweight enclosure constructed from plyphenylene sulphide (PPS Ryton), that protects the datalogger at pressures up to 1 Bar or depths of 10m. Maximum operating temperature 125°C.
- material: polyphenylene sulphide
- protection: up to 1 Bar or 10m submersion
- response time in water:
- 118 s (61% step change)
- 237 s (10% to 90% step change)
- response time in air:
- 407 s (61% step change)
- 827 s (10% to 90% step change)
- o-ring: silicone S500-70 FDA approved

SL50-ACC06 silicone enclosure – sinking
Two part silicone enclosure to protect all SL50 series dataloggers. Available in packs of five or ten.
- material: silicone rubber
- protection: up to 0.5 Bar or 5m submersion
- response time in water:
- 90 s (61% step change)
- 243 s (10% to 90% step change)
- response time in air:
- 270 s (61% step change)
- 575 s (10% to 90% step change)

SL50-ACC08 silicone enclosure – floating
A coloured waterproof enclosure with blue handle for all SL50 series dataloggers. Supplied in packs five or ten.
- material: silicone rubber
- protection: up to 0.5 Bar or 5m submersion
- response time in water:
- 90 s (63% step change)
- 243 s (10% to 90% step change)
- response time in air:
- 270 s (63% step change)
- 545 s (10% to 90% step change)
- weight: 5g excluding datalogger